Figure 1.

The transitional area of IHCA and adjacent liver. (a, c) HE stained whole slide (a) and detail (c) of a transitional area of an IHCA (T) and the nontumorous adjacent liver (AL). Arrowheads indicate the noncapsulated border of the tumor. (b, d) Glutamine synthetase expression of (a, c) highlights the difference in architecture of IHCA and adjacent liver (AL). In the AL part, glutamine synthetase expression in perivenular areas accentuates the preserved lobular architecture. (e, f) Portal tracts containing thick-walled arteries at the border of tumor (T) and adjacent liver (AL).